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Earth’s Core Has a Newfound Layer

The Earth’s core is amazing in several ways. For one, it is the hottest part of the planet, with temperatures reaching up to 9,000 degrees Fahrenheit (5,000 degrees Celsius). The heat is generated by the decay of radioactive isotopes and…
Earth Might Rapidly Contaminate Meteorites

It is estimated that about 44,000 to 84,000 metric tons of meteoritic material fall on Earth each year. However, the vast majority of this material is in the form of tiny dust particles that burn up in the atmosphere and…